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Finding the Fourth Proportional to 268,809.63, 403,164.20 and 108,843.27

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Solution

The fourth proportional to 268,809.63, 403,164.20 and 108,843.27 is: 163,244.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,809.63 : 403,164.20 = 108,843.27 : x
  2. Step 2: Convert to fraction form
    268,809.63/403,164.20 = 108,843.27/x
  3. Step 3: Cross multiply
    268,809.63x = 403,164.20 × 108,843.27
  4. Step 4: Simplify right side
    268,809.63x = 43,881,709,330.72
  5. Step 5: Solve for x
    x = 43,881,709,330.72/268,809.63
  6. Step 6: Final answer
    x = 163,244.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.